23.87% is the change from 662 to 820
Calculation steps:
[( 820 - 662 ) ÷ 662] x 100 = 23.87%
Formula
Percentage change = [(820 - 662) / 662] x 100
Subtract the new number by the original number
820 - 662 = 158
158 ÷ 662 = 0.23867069486404835
0.23867069486404835 x 100 = 23.87%